Interlocking system



(No Model.) 3 Sheets-Sheet 1.

E. J. REMILLON.

INTERLOOKING SYSTEM.

No. 350,993. Patented Oct. 19. 1886.

O O I O O O O w M w I w 9 awn (No Model.) 3 SheetsSh eet 3.

E. J. REMILLON.

INTERLOGKING SYSTEM.

No. 350,993. Patented Oct. 19,1886.

UNITED STATES PATENT OFFICE.

EUGENE J. REMILLON, OF MOBER-LY, MISSOURI.

INTERLOCKING SYSTEM.

SPECIFICATION forming part of Letters Patent No. 350,993, dated October 19, 1886.

Application filed May 10, 1856.

To all whom, it may concern.-

Be it known that I, EUGENE J. REMILLON, of Moberly, in the county oi Randolph and State of Missouri, have invented a certain new and useful Improvement in Interlocking Systems, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, and in which- Figure 1 is a rear elevation of my improved system. Fig. 2 is a horizontal transverse section taken on line 2 2, Fig. 1. Fig. 8 is an enlarged perspective view of one of the locking-bars removed. Fig. 4. is an enlarged detail perspective view of one of thelevers, showing the lower end of the operating dog or pawl. Fig. 14 is a modification of this lever and pawl. Fig. 5 is a side elevation of my improved system. Figs. Gaud 7 are detail sec tions through the stand, taken on line 6 7,Fig. 2, Fig. 6 showing the lever, where the section is taken, in one position, and Fig. '7 showing it in the reverse position. Fig. 8 is a detail section taken lengthwise of the stand, showing the manner of back-locking the levers by moving the locking-bars. Figs. 9, 10, 11, 12, and 13 are diagrams illustrating the operation of my improved system.

My invention relates to an improved interlocking system for operating railway switches and signals; and my invention consists in features of novelty hereinafter fully described, and pointed out in the claims.

Referring to the drawings, A represents a stand supported on a suitable base, A. Through the lower part of this stand passes a shaft or rod, B. On this shaft are pivoted a number of levers, numbered, respectively, 1, 2, 3. -l, 5, and 6, in the order shown in Figs. 10, 11, 12. and 13. These levers have cranks on their lower ends, to which are connected rods 0, that connect the levers to their individual switches or signals in the ordinary method. The lovers are capable of being moved from the position shown in Fig. 6 to that shown in Fig. 7, and each isheld in either position by projections D on a vertical dog or pawl, E, with which each lever is provided, the dog being held in a slot, E, of the lever, and being operated by means of a latch, F,pivoted at F to the handle and connected to the dog by means of a rod, F, passing through lugs F, secured to the handle, and F secured to the dog.

Serial No. 201,759. (No model.)

Surrounding the rod F, between the lugs F" v F, is a spring, F which acts to hold the pro jections D into notches A of the stand, and it will thus be seen that the levers will be held in whichever position they may be placed, and by simply closing the latches F they will be disengaged from the stand A.

Secured to the stand A by rods A' are looking bars I, P, I", I, I, and 1, which are interposed between the levers, as shown in Figs. 8, 10, ll, 12, and 13. These locking-barshave shoulders J, as shown, which engage the levers in the different positions, as hereinafter described, whereby the levers are locked and unlocked. The locking-bars are of the shape shown most clearly in Fig. 3, and have vertical projections L, with sockets L on their lower ends to receive the rods A. It willthus be seen that these locking-bars are free to rock from a vertical to an inclined position,as shown in Fig. 8, and they are thus moved to unlock the levers, as hereinafter described, by means ofinclined projections E on the dogs E, which come against like projections M on the lock ing-bars. It will thus be seen that when the latch F is operated to disengage the projections of each lever from the notches A the projections on the dog will move the locking bars into the position shown on the right-hand side of Fig. 8, thus disengaging thelevers from behind the shoulders J of the locking-bars, so that the levers are free to move.

Vith my arrangement the operation of one lever locks or back-locks another lever,as will be understood when I describe the operation of my improved system, which I will now do by referring to Figs. 10, ill, 12, and 13. The drawings show the interlocking signals 6 and 4,Fig. 9, of track A,signals 2 and on switch 1. of track B, and signals 5 of track C7, thelatter operating two signals. hen the levers are all in their normal position all signals in this case are set at danger and switch set for track A, and no train can come through before the way is cleared by the changing of signals, and three levers can be movedt-hat is, 1, 5, and 6. Assuming that the track A is to be used, the operator raises the spring-catch of lever 6, as described, and this action will lock levers l and 5 by moving the bar 1 from the position shown in Fig. 10 to that shown in Fig. 1l,which will bring the outer ends of the rocking-barf against nuts or collars N on rods N, connecting the bar I to the bar I of lever ZCO 5; and this moving of the rocking-bar 1, caused by the raising of the latch of lever 6, will cause collars or nuts 0 on a rod, 0, to come against the bar 1 and the lever I is thus held from being moved by the shoulder J on the bar I. The rods 0' pass through the rockingbars 1 1 and 1 having a slight movement through the bars 1 I ,until the collars 0 come against the bar 1 and similar collars or nuts, O",con1e against the bar I ,when the movement is reversed. Thus it will be'seen that when the latch of lever 6 is raised, the moving of rocking-bar 1 holds the locking-bar I over against the lever 1, and likewise holds the locking-bar 1 over against lever 5. These levers are thus locked when the latch of lever 6 is raised. As soon as the latch of lever 6 is raised, the lever can be drawn back from the position shown in Fig. 6 to that shown in Fig. 7, thus throwing its switch or signal. Before it is thrown back, or while it is, in its normal position, it will be seen that lever 4 will be locked, as its bar I cannot be moved over to relieve the lever 4 from behind the shoulder J. \Vhen the lever 6 has been thrown back to the position shown in Fig. 7, it will be seen that it will eolneopposite the portion which is cut away to form the shoulder J of the rear end of locking-bar 1, and

g the bar is then free to be moved over, allowing lever 4 to be, operated. \Vhen lever 6 is thus brought to this position (displaying the safety-signal on the track A) only lever 4 can be operated, the remainder of the levers being locked, and as soon as the latch of lever 4 is raised No. 6 will be back-locked by the shoulder J of locking-bar 1 engaging it, as shown in Fig. 11, and both the signals of track A are therefore at safety, and those of tracks B and O at danger, the lever 4 being moved to the position shown in Fig. 11. To take the levers back to their normal position, No. 4 must come back first, and then 1N0. (ican be brought back, previously looking No. 4, as it will be neceesary to move the bar 14 to the position shown in Fig. 10 before lever 6 can be removed from behind the shoulder J of the locking-bar 14. When at the end of its stroke, this lever 6 will unlock Nos. 1 and 5, and again the three levers, l, 5, and 6, are free. Vhat I have just described is the first combination. The second combination is when the track B is to be used. The lever 1 will then be brought forward, previously locking 5 and 6, through means of the rods 0 and its collars, already described, and consequently the bar 1* and. lever 4. hen lever 1 is at the end of its stroke, No. 2 can be operated by moving thelocking-bar I from the position shown in Fig. 11. to that shown in Fig. 12, and this movement of the bar 1 will back-lock No. 1, which will be engaged behind the shoulder J of the lockingbar I. WVhen No. 2'is at the end of its stroke, No. 3

can be moved, previously back-locking No. 2 by throwing the shoulder J of the locking-bar I in front of lever No. 2. \The signal now stands at fsafety for track B and at danger for the other two tracks. The levers can then be brought to their normal position from the position shown in Fig. 12 to that shown in Fig. 10, it being necessary, of course, to bring them back in the reverse order to which they were first operated-No. 3 first, 2 next, and 1 last. This ends the second combination. The third combination is'made when the track 0 is to be used. Then lever 5 will be operated, previously locking 1, 2, 3, 4, and 6, as shown in Fig. 13, through means of the rods 0 N and their collars, as already described inrelation to the first combination. The signals of the track Gare now atsafety, and those of the other tracks are at"danger. \Vhen lever 5 is brought back to its normal position from the position shown in Fig. 13 to that shown in Fig. 10, the levers 1 and 6 will again be released. It will thus be seen that with my improved system the combination described can be produced, and by adding additional levers, locking-bars, and rods other combinations may alsobe produced.

As a modification of the dog E with the projections E and inclined projections M on the locking-bars, the lovers may have two of their corners beveled off, as shown in Fig. 14,.

and the corresponding edges of the lockingbars may be beveled off, as shown in this figure, when the movement of the levers would be prevented without the movement of the locking-bars first taking place, which could not be done until the proper time, as described in my preferred form, and when the levers are operated the inclines would cause the move ment of the lockingbars.

I claim as my invention 1. In an interlocking system, the combination, with the operating-levers, of the oscillating locking-bars notched, substantially as described, and bearing against adjacent faces of two of said levers, and the sliding blocks secured to said levers for moving said locking-bars, substantially as set forth.

2. The combination, with the levers 6 and 4, of the locking-bar I engaging the lever 6, for holding it normally at danger, means formoving said locking-bar when said lever is to be moved to safety, the locking-bar 1 'held by the lever 6 against movement until the said lever is moved to safety, the lever 4 held againstmovement by the locking-bar 1*, and means V for moving said locking-bar when said lever is free to move, substantially as set forth.

v3. In an interlocking system, the combina tion of the lovers 1, 2, 3, 4, 5, and 6, movable locking-bars, and connecting rods N 0, provided with collars, substantially as shown and described, for the purpose set forth.

, EUGENE J. REMILLON. In presence of- I I JOHN W. NUTE, E. F. hLkY. 

